PSB2120 데이터 시트보기 (PDF) - Infineon Technologies

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PSB2120

ISDN Remote Power Controller (IRPC)

Infineon Technologies 

PSB 2120

Pin Definitions and Functions

Pin Pin Symbol Input (I) Definition

No. No.

Output (O)

P-DSO P-DIP

Function

1

1

SYNC I/O

Synchronization

Input for synchronization of the

oscillator to an external frequency,

or output to synchronize multiple

devices.

2

2

RC

I

RC-Oscillator

The external timing components of

the ramp generator are attached to

this pin.

3

3

COMP O

Compensation

Error amplifier output and Pulse

Width Modulator (PWM) input for

loop stabilization network.

4

4

VP

I

Positive Voltage Non-inverting input of the error

Sense

amplifier.

5

5

VN

I

Negative Voltage Inverting input of the error amplifier.

Sense

6

6

CSS

I

Soft Start

Capacitor

The capacitor at this pin determines

the soft-start characteristic.

7

7

EME O

Emergency

A low input voltage at POL will

activate the output EME.

8

8

POL

I

Polarity

Detection

POL is the input to a non inverting

Schmitt-trigger.

11

9

GA

O

Gate

Output of the FET-driver.

N.C. 10

DR

O

Drain

Drain connection of the power FET.

N.C. 11

SO

O

Source

Source connection of the power

FET.

14

12

CIN

I

Input Capacitor

CIN has to be connected to the input

buffer-capacitor and a current

limiting charging-resistor.

Semiconductor Group

3

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